Prorate and fuel tax offices

Customer service field offices

Olympia

Department of Licensing
405 Black Lake Blvd SW
Olympia, WA 98502
Map and directions

• Hours: 8:30 a.m. - 4:30 p.m., Monday - Friday

Vancouver

Department of Licensing
1301 NE 136th Ave
Vancouver, WA 98684
Map and directions

• Hours: 8:30 a.m. - 4:30 p.m., Tuesday - Thursday

Olympia headquarters

Motor Carrier Services IRP (prorate) or IFTA

• Phone: 360.664.1858
• Hours: 9 a.m. - 3 p.m., Monday - Friday
• Email: MotorCarrierServices@dol.wa.gov
• Fax: 360.570.7829
• Mail:
  • With payments:
    Motor Carrier Services
    PO Box 9048
    Olympia, WA 98507-9048
  • Without payments:
    Motor Carrier Services
    PO Box 9228
    Olympia, WA 98507-9228

Fuel tax

• Mail with payments:
  Fuel Tax Unit
  PO Box 9048
  Olympia, WA 98507-9048
• Mail without payments:
  Fuel Tax Unit
  PO Box 9228
  Olympia, WA 98507-9228

Overnight mailing (FedEx, UPS, USPS)

If you need help with

• IFTA or dyed diesel user licenses
  • Phone: 360.664.1858
  • Email: MotorCarrierServices@dol.wa.gov
  • Fax: 360.570.7839
• Fuel tax refunds
  • Phone: 360.664.1838
  • Email: UnlicensedRefunds@dol.wa.gov
  • Fax: 360.570.7057
• Aircraft distributors, heating oil distributors, motor fuel/special fuel distributors, blenders, or suppliers
  • Phone: 360.664.1852
  • Email: FuelTax@dol.wa.gov
  • Fax: 360.570.7842